The U.S. Attorney's Office in Columbus says the defense requested the postponement of Friday's scheduled sentencing for Christopher Pelloski, former director of Ohio State University's pediatric cancer radiation program.

Sentencing is delayed for a former top pediatrician at Ohio State University who pleaded guilty to accessing child pornography.

The U.S. Attorney’s Office in Columbus says the defense requested the postponement of Friday’s scheduled sentencing for Christopher Pelloski, former director of Ohio State University’s pediatric cancer radiation program.

His attorneys didn’t immediately respond to calls regarding the reason for the delay.

Prosecutors are seeking a four-year prison sentence.

Pelloski has cited a troubled childhood and his own sexual abuse as a boy as he seeks a lighter sentence. His attorneys say he compensated for his childhood by becoming an overachiever but also dealt with stress by abusing alcohol.

Federal prosecutors say his conduct went back several years and involved disturbing images.

A criminal complaint accused Pelloski of downloading child pornography, including videos and photos.

A well-known Columbus pediatrician has resigned after being arrested on charges of downloading child pornography.

Christopher Pelloski was the director of a pediatric oncology program at Children’s Hospital and OSU’s James Cancer Hospital. The Franklin County Sheriff’s Office says they obtained a search warrant for Pelloski’s Upper Arlington residence and found evidence he downloaded sexually explicit videos of children.